Mobile computer communications fundamentally implies reliance on a self-contained, portable power source and communications over an error-prone fading radio channel. In this paper we propose two energy-conserving alternatives to the classical Go-Back-N automatic repeat request protocol which allow a substantial energy saving over the traditional approach by reducing the number of uplink acknowl...

This paper proposes a novel power and location aware medium access control (MAC) protocol called LAMP (Location Aware MAC Protocol). LAMP is designed for location aware mobile ad-hoc networks (MANETs). Specifically MANETs such as Sensor Networks or Ubiquitous Computing Environments where; node location is important to the over all objective of the network and mobility is bounded. LAMP uses the ...

At the behavioral level, large power saving is possible by shutting down unused operations, which is commonly referred to as power management. However, on the other hand, operation scheduling has a significant impact on the potential for power saving via power management. In this paper, we present an integer linear programming (ILP) model for the simultaneous application of operation scheduling...

Wireless sensor networks and embedded systems are becoming commonplace in many fields of research. However, sensor nodes are generally powered by batteries which provide a limited amount of power, and it is often difficult to recharge or replace the batteries. Therefore, power aware and power efficient protocols at each layer of the communications are very important for wireless sensor networks...

In this paper, we integrate the IEEE 802.15.6 wireless body area networks (WBAN) with the wireless USB (WUSB) system to develop wireless communication technologies for wireless wearable computer systems. Due to portable and wearable nature of the wearable computer systems, the WUSB over IEEE 802.15.6 hierarchical medium access control (MAC) protocol has to support the power saving operation and...

Power saving is one of the key issues in mobile ad-hoc networks (MANET), while previous researches in MAC layer are mostly focused on improving the channel utilization by adopting variable-range transmission power control. In this paper we focus on the power savings in the network layer, and propose a power adjusting algorithm (we term it PAA). In the presence of mobile host’s mobility, PAA is ...

It is well-known that a single node in a network cooperates with one another employing cooperative communications can lead to transmission power saving. However, due to the additional processing power in receiving and retransmitting other’s information, not all nodes and cooperative protocols can achieve energy efficiency. To ensure energy efficiency of a cooperative network, a novel merge proc...